There are
2,808 mi
from Rock Hill, SC to Seatac, WA
That's the driving distance. It would take 2 days 2 hours to go from Rock Hill, South Carolina to Seatac, Washington.
The flight distance (direct flight from Rock Hill, SC to Seatac, WA) is 2,282.73 mi.
2,808 mi = 3.22 kms